The concept of "Trinity" means that God the Father, God the Son, and God the Holy Spirit are not different entities, but are one God. The Trinity—God the Father [Jehovah], God the Son [Jesus], and God the Holy Spirit [Ahnsahnghong]—are one. In order to understand why the members of the Church of God believe in Christ Ahnsahnghong as the Holy Spirit, please study the truths of "the Second Coming Christ."
To better understand the Trinity, let’s first consider the transformation of water. Water is a liquid, but when its temperature falls below 0° C, the water will turn into ice, a solid. When the water is boiled, it turns into vapor, a gas. Water, ice, and vapor have different names and different forms, but their substance is the same: H2
It is similar to when an actor in a monodrama plays three different characters—a father, a son, and a grandson—all having different voices. Although there are three different voices and three different roles, there is only one actor.
Like this, even though God the Father, God the Son, and God the Holy Spirit may look different, have different names, and have appeared during different ages, the three are one God. The Trinity reveals that God administrates His salvation work while playing three roles.
For six thousand years God has carried out His salvation work in the names of Jehovah, Jesus, and Ahnsahnghong, each according to its age.
God the Father, Jehovah = God the Son, Jesus
Let’s confirm that God the Father, Jehovah, and God the Son, Jesus, are one God.
Isaiah prophesied about Jesus as follows:
Isa. 9:6 『For to us a child is born, to us a son is given, and the government will be on his shoulders. And he will be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.』
Jesus is referred to as the "Son," but the Bible revealed that the son would be called "Mighty God," and "Everlasting Father." Apostle Paul clearly understood that Jesus’ nature was that of God the Father, as follows:
Phil. 2:5-7 『Your attitude should be the same as that of Christ Jesus: Who, being in very nature God, did not consider equality with God something to be grasped, but made himself nothing, taking the very nature of a servant, being made in human likeness. And being found in appearance as a man . . .』
Rom. 9:5 『. . . Christ, who is God over all, forever praised! Amen.』
We can also confirm that God the Father, Jehovah, and God the Son, Jesus, are one God by studying the history of the Creation.
Isa. 44:24 『I am the LORD, who has made all things, who alone stretched out the heavens, who spread out the earth by myself . . .』
God the Father—Jehovah—said that He had created everything by Himself, but Jesus said that it was He who had created the world.
Col. 1:16 『For by him [Jesus] all things were created . . .』
The Bible states that God the Father, Jehovah, created the world, but it also says that God the Son, Jesus, created the world. Therefore, God the Father [Jehovah] and God the Son [Jesus] are clearly one God.
Isa. 44:6 『"This is what the LORD says—Israel's King and Redeemer, the LORD Almighty: I am the first and I am the last . . .』
God the Father said, "I am the first and I am the last."
Rev. 22:13 『"I [Jesus] am the Alpha and the Omega, the First and the Last, the Beginning and the End."』
God the Son also said, "I am the First and the Last." Therefore, God the Father, Jehovah, and God the Son, Jesus, are one God.
God the Father, Jehovah = God the Holy Spirit, Ahnsahnghong
Let’s confirm that God the Father, Jehovah, and God the Holy Spirit are one God. In the Bible, there are frequent references to "the (Holy) Spirit." The Bible teaches us that God is spirit, and that God is holy. Thus, the spirit of God is holy, too. We call the spirit of God "the Holy Spirit."
John 4:24 『God is spirit, and his worshipers must worship in spirit and in truth.』
Apostle Paul wrote—in the book of Corinthians—that God is the Holy Spirit.
1 Cor. 2:10-11 『. . . but God has revealed it to us by his Spirit. The Spirit searches all things, even the deep things of God. For who among men knows the thoughts of a man except the man's spirit within him? In the same way no one knows the thoughts of God except the Spirit of God. 』
The (Holy) Spirit could search even the deep things of God (the Father), the things which no one could know. If "the Holy Spirit" and "the spirit of God" were different, how could the Holy Spirit possibly know the thoughts of God? Only the spirit of God—the Holy Spirit—knows the thoughts of God. Therefore, God the Father and the Holy Spirit are one.
2 Tim. 3:16 『All Scripture is God-breathed . . .』
2 Pet. 1:20-21 『Above all, you must understand that no prophecy of Scripture came about by the prophet's own interpretation. For prophecy never had its origin in the will of man, but men spoke from God as they were carried along by the Holy Spirit. 』
The Bible is "God-breathed" and it was written by the prophets, "as they were carried along by the Holy Spirit." This clearly testifies that God the Father, Jehovah, is the Holy Spirit.
The Bible = God-breathed book
The Bible = A book written by prophets being carried along by the Holy Spirit Therefore the Holy Spirit is God.
Therefore, the Holy Spirit, Ahnsahnghong, and God the Father, Jehovah, are one God.
God the Son, Jesus = God the Holy Spirit, Ahnsahnghong
Let’s confirm that God the Son, Jesus, and God the Holy Spirit, Ahnsahnghong, are one God.
Isa. 9:6 『. . . a son ...will be called Wonderful Counselor . . . 』
John 14:26 『"But the Counselor, the Holy Spirit, whom the Father will send in my name, will teach you all things . . . "』
The Son is the Counselor, and the Counselor is the Holy Spirit, so we can easily conclude that the Son, Jesus, is the Holy Spirit.
Therefore, the Father, the Son, and the Holy Spirit are not separate, but are one. God the Father—Jehovah, God the Son—Jesus, and God the Holy Spirit—Ahnsahnghong, are one God.
The Holy Spirit Is a Personal Being
The Holy Spirit is not a kind of energy or an electric wave. The Holy Spirit is a personal being who has feelings (Rom. 15:30), who grieves (Eph. 4:30), who speaks (Rev. 2:7), who groans (Rom. 8:26), who intercedes (Rom. 8:26), who testifies about God (John 15:26), who teaches (John 14:26), who gives commands (Rom. 8:29), who keeps us from preaching in certain places (Acts 16:6-7), who thinks (Rom. 8:27), and who has been blasphemed (Matt. 12: 31-32).
John 14:26, NASB 『"But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all that I said to you.』
The Holy Spirit is referred to as "He," meaning that the Holy Spirit is a personal being.
Matt. 28:19 『"Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit,"』
If the Holy Spirit was not a man with character, but merely an invisible, active power—like an electric wave, or energy—how would it be possible for the Holy Spirit to have a name? The fact that the Holy Spirit has a name proves that the Holy Spirit is a man, with character.
God commanded us to be baptized in the name of the Father, the name of the Son, and the name of the Holy Spirit, because He would administrate His salvation work with three names (of the Father, of the Son, and of the Holy Spirit) according to each age. By calling out the three names through which God showed His authority, God’s prophets are to baptize people and commemorate God.
God’s name was "Jehovah" when He played the role of the Father, and it was "Jesus" when He worked as the Son. Then, how should we call upon God when He is working as the Holy Spirit?
The name of the Holy Spirit is Ahnsahnghong.
Since God told us to "baptize (people) in the name of the Father, of the Son, and of the Holy Spirit," we need to understand that the "Trinity"—God the Father [Jehovah], God the Son [Jesus], and God the Holy Spirit [Ahnsahnghong]—are one God. By this understanding we can receive abundant blessing and we can participate in God’s administration of salvation, which has been carried out through the Trinity.